Process Equipment and Plant Design Overall tray efficiency of a distillation column is the ratio of the number of Overall gas transfer units to the number of ideal trays required Ideal trays required to the number of real trays required None of these Real trays required to the number of ideal trays required Overall gas transfer units to the number of ideal trays required Ideal trays required to the number of real trays required None of these Real trays required to the number of ideal trays required ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Rivets are generally specified by the Shank diameter Overall length None of these Head diameter Shank diameter Overall length None of these Head diameter ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In the design of a paddle agitator, the ratio (paddle dia/tank dia) is normally taken as 0.8 0.5 0.1 0.25 0.8 0.5 0.1 0.25 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Overall distillation column efficiency for most of the refinery columns can be given by (for μ = 0.07 - 1.4 cp and relative volatility < 4) (where η = overall column efficiency, % μ = molal average viscosity of feed at average column temperature and pressure, cp Δp = pressure drop per tray, psi) Η = 0.25 log μ - 1.67 Η = 1.66 - 0.25 log μ Η = 17 - 61.1 log μ Η = 24.6 (Δp/μ) Η = 0.25 log μ - 1.67 Η = 1.66 - 0.25 log μ Η = 17 - 61.1 log μ Η = 24.6 (Δp/μ) ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design An underdesigned steam trap will Waste steam None of these Destroy itself of acceleration wear due to rapid recycling Back up condensate and cause water hammer in steam line Waste steam None of these Destroy itself of acceleration wear due to rapid recycling Back up condensate and cause water hammer in steam line ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design A claming section before the liquid flows into the downcomer is privided to Cool the liquid before it flows down Permit release of entrained vapour in the liquid Ensure better vapour-liquid contact Reduce the discharge fluctuation Cool the liquid before it flows down Permit release of entrained vapour in the liquid Ensure better vapour-liquid contact Reduce the discharge fluctuation ANSWER DOWNLOAD EXAMIANS APP
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